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Internal and External SSL cert?

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  • Internal and External SSL cert?

    Is it possible to create a internal and external cert for ssl? What i'm trying to do is set up outlook anywhere and it needs a cert that is created properly.

  • #2
    Re: Internal and External SSL cert?

    You can certainly create your own internal cert using a Window CA or selfssl from the Resource Kit utilities. I have a Windows Enterprise CA in my home that issues certificates.

    The issue that comes in to play is that it is not a publically trusted cert. Depending on where and how you use it, it may be rejected by others who are being cautious.

    VCDX3 #34, VCDX4, VCDX5, VCAP4-DCA #14, VCAP4-DCD #35, VCAP5-DCD, VCPx4, vEXPERTx4, MCSEx3, MCSAx2, MCP, CCAx2, A+ - VMware Virtualization Evangelist
    My advice has no warranties. Follow at your own risk.


    • #3
      Re: Internal and External SSL cert?

      As has been discussed and mentioned many times in this Forum, a "real" SSL Certificate is often the best solution. is a cheap certificate for what you need if the self made one causes problems.
      Joined: 23rd December 2003
      Departed: 23rd December 2015


      • #4
        Re: Internal and External SSL cert?

        I am currently deploying Exchange 2007 with two SSL certificates.
        The default certificate that the installation process creates is left on the default web site, a second site is then created and a new commercial SSL certificate is then applied to that.

        I blogged on this earlier in the year:

        The reason I am doing that is because a certificate that supports the multiple names required costs something like US$500 a year, when I can get two certificates plus the home grown certificate for less than US$75 a year.

        The drawback is that if you want to use and a friendly URL for OWA (, etc) then you need two external IP addresses.

        Simon Butler
        Exchange MVP

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